amishmm / wdsaver Goto Github PK

Hello!
I apologise in advance for my poor English and for long (maybe too long) 
message.
I've installed wdsaver 1.0 on ubuntu 10.04 on a netbook. It has a toshiba hard 
disk, not a western digital ones, but I want to reduce his heads parking.

I've noticed an error (I think it's an error) on the readme file.
In lines 15 and 18 there is written wdparm, but the commands lines works for me 
with wdsaver instead of wdparm.

However, I've noticed a thing that I don't understand: wdsaver works fine with 
"wdparm -t 40 -v" or "wdparm -t 40 -v -l", but not with "wdparm -t 40 -v -b".

I've tested the head parking with a long command line:
sudo smartctl -a /dev/sda | grep Load_Cycle_Count && sleep 300 && sudo smartctl 
-a /dev/sda | grep Load_Cycle_Count && sleep 300 && sudo smartctl -a /dev/sda | 
grep Load_Cycle_Count && sleep 300 && sudo smartctl -a /dev/sda | grep 
Load_Cycle_Count
it checkes the head parking every 5 minutes, for 4 times. I've checked the 
value Load_Cycle_Count with this command line in many and different situation:

1) notebook working (web, editing files, listen music) without wdsaver - 
doesn't change
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197721
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197721
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197721
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197721


2) notebook not working (leave alone :P ) without wdsaver - changes
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197728
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197729
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197730
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197731


3) notebook not working with wdsaver test - doesn't change
If I test wdsaver from shell with:
sudo ./wdparm -t 40 -v
and
sudo ./wdsaver -t 40 -v -l
it works fine, Load_Cycle_Count doesn't change:
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197745
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197745
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197745
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197745


4) notebook not working with wdsaver installed - changes
Ok, I follow again the readme file to install wdsaver:
sudo cp -i ./wdsaver /usr/bin
sudo chmod 700 /usr/bin/wdsaver
sudo leafpad /etc/rc.local
I've added in the rc.local file this line (before exit0):
/usr/bin/wdsaver -t 40 -l -b
and rebooted the notebook.
wdsaver is listed with the other processes.
it's seems to be all right, doesn't?
Instead, the heads of hard disk go parking:
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197765
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197766
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197767
193 Load_Cycle_Count        0x0032   081   081   000    Old_age   Always       
-       197768

Well, I could have the same results with wdsaver test and installed, but it's 
not so.
With wdsaver test it's all ok. I install wdsaver and it's seems to be no 
wdsaver running.
What do I mistake?

Thanks.